39 research outputs found

    Self-efficacy enhanced in a cross-cultural context through an initiative in under-resourced schools in KwaZulu-Natal, South Africa

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    This paper discusses the Khanyisa Programme, an initiative in KwaZulu-Natal, South Africa, where learners from under-resourced schools are supported by teachers and high achievers in Grade 11 and 12 from a previously advantaged state school under apartheid. A qualitative, evaluative study was undertaken to identify key elements in the ongoing success of the programme and collect participant suggestions for improvement. The findings, discussed within the framework of self-efficacy theory, identified enormous gains by Khanyisa learners, leading to vastly improved career prospects

    Gene Ontology annotations and resources.

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    The Gene Ontology (GO) Consortium (GOC, http://www.geneontology.org) is a community-based bioinformatics resource that classifies gene product function through the use of structured, controlled vocabularies. Over the past year, the GOC has implemented several processes to increase the quantity, quality and specificity of GO annotations. First, the number of manual, literature-based annotations has grown at an increasing rate. Second, as a result of a new 'phylogenetic annotation' process, manually reviewed, homology-based annotations are becoming available for a broad range of species. Third, the quality of GO annotations has been improved through a streamlined process for, and automated quality checks of, GO annotations deposited by different annotation groups. Fourth, the consistency and correctness of the ontology itself has increased by using automated reasoning tools. Finally, the GO has been expanded not only to cover new areas of biology through focused interaction with experts, but also to capture greater specificity in all areas of the ontology using tools for adding new combinatorial terms. The GOC works closely with other ontology developers to support integrated use of terminologies. The GOC supports its user community through the use of e-mail lists, social media and web-based resources

    Genome-wide association and genomic prediction of resistance to maize lethal necrosis disease in tropical maize germplasm

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    KEY MESSAGE: Genome-wide association analysis in tropical and subtropical maize germplasm revealedthatMLND resistance is influenced by multiple genomic regions with small to medium effects. ABSTRACT: The maize lethal necrosis disease (MLND) caused by synergistic interaction of Maize chlorotic mottle virus and Sugarcane mosaic virus, and has emerged as a serious threat to maize production in eastern Africa since 2011. Our objective was to gain insights into the genetic architecture underlying the resistance to MLND by genome-wide association study (GWAS) and genomic selection. We used two association mapping (AM) panels comprising a total of 615 diverse tropical/subtropical maize inbred lines. All the lines were evaluated against MLND under artificial inoculation. Both the panels were genotyped using genotyping-by-sequencing. Phenotypic variation for MLND resistance was significant and heritability was moderately high in both the panels. Few promising lines with high resistance to MLND were identified to be used as potential donors. GWAS revealed 24 SNPs that were significantly associated (P < 3 × 10(−5)) with MLND resistance. These SNPs are located within or adjacent to 20 putative candidate genes that are associated with plant disease resistance. Ridge regression best linear unbiased prediction with five-fold cross-validation revealed higher prediction accuracy for IMAS-AM panel (0.56) over DTMA-AM (0.36) panel. The prediction accuracy for both within and across panels is promising; inclusion of MLND resistance associated SNPs into the prediction model further improved the accuracy. Overall, the study revealed that resistance to MLND is controlled by multiple loci with small to medium effects and the SNPs identified by GWAS can be used as potential candidates in MLND resistance breeding program. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s00122-015-2559-0) contains supplementary material, which is available to authorized users

    Real-life comparison of beclometasone dipropionate as an extrafine- or larger- particle formulation for asthma

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    BackgroundBeclometasone dipropionate is an inhaled corticosteroid (ICS) available in both extrafine and larger-particle hydrofluoroalkane formulations. Extrafine beclometasone has greater small airway distribution and inhalation technique tolerance than larger-particle beclometasone; therefore, its use may be associated with improved asthma outcomes at population levels. The study objective was to compare real-life effectiveness of extrafine and larger-particle beclometasone.MethodsRetrospective matched cohort study including primary care patients with asthma (ages 12–60 and non-smokers 61–80 years) prescribed extrafine or larger-particle beclometasone by metered-dose inhaler. We studied patients receiving their first ICS (initiation population, n = 11,289) or switched from another ICS without dose change (switch population, n = 19,065). The extrafine and larger-particle beclometasone cohorts were matched in each population for demographic and database measures of asthma control during a baseline year; and endpoints assessed during 1 outcome year were adjusted for residual confounding factors.ResultsThe odds of no loss of asthma control (no asthma-related hospital attendance, consultation for lower respiratory tract infection, or oral corticosteroids) were significantly higher in the extrafine beclometasone cohorts of both initiation population (adjusted odds ratio [aOR] 1.12; 95% CI 1.02–1.23) and switch population (aOR 1.10; 95% CI 1.01–1.19). The odds of better adherence to ICS therapy were also significantly higher in both extrafine beclometasone cohorts (initiation population, aOR 1.64; 95% CI 1.52–1.75 and switch population, aOR 1.35; 95% CI 1.27–1.43).ConclusionsThese findings are consistent with the hypothesis that delivery of beclometasone in extrafine particle size produces real-life asthma treatment benefits.<br/

    Reading “Bel and the Dragon” as Narrative: A Comparison between the Old Greek and Theodotion

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    Narrative theory, especially as it pertains to biblical narrative, is in a nebulous state. This article points out the enduring importance of narrative criticism for biblical narrative by way of a comparison between the two extant versions of the ancient narrative of Bel and the Dragon. By using an eclectic model of narrative theory, three traditional focal points of narratology (time, character and space) are compared. In comparing these aspects of the two versions, certain emphases of each come to light, clearly showing the benefits of reading biblical narrative as narrative

    Monozygotic twins discordant for exstrophy of the urinary bladder.

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    A pair of monozygotic male twins discordant for ectopia vesicae urinariae is described. There is no reason to think that any exogenic factors contributed to the aetiology. There was no consanguinity and no history of congenital anomalies on either side of the family. Published reports concerning family incidence and twin reports are reviewed
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